Explanation: The TIR information was pruned from one or more of the component (differential or cumulative) backup images being synthesized.
The TIR information is automatically restored to the image catalog if you do the following: expire the synthetic backup (full or cumulative) image and try to rerun the synthetic backup job for the client. However, the synthetic backup job fails with this error if the TIR restore fails due to bad, missing, or vaulted media or a bad drive.
Recommended Action: Reimport the TIR information into the catalog of each component image (from which the TIR information was pruned). Then rerun the synthetic backup job. The TIR information can be imported into the image catalog by initiating a true image restore of any file from that component image. The restore process also restores the TIR information in the image catalog.